131020223 has 8 divisors (see below), whose sum is σ = 133474848. Its totient is φ = 128588544.

The previous prime is 131020199. The next prime is 131020237. The reversal of 131020223 is 322020131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131020223 - 2⁶ = 131020159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131020198 and 131020207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6011 + ... + 17267.

It is an arithmetic number, because the mean of its divisors is an integer number (16684356).

Almost surely, 2^131020223 is an apocalyptic number.

131020223 is a deficient number, since it is larger than the sum of its proper divisors (2454625).

131020223 is a wasteful number, since it uses less digits than its factorization.

131020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11473.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 131020223 is about 11446.4065540238. The cubic root of 131020223 is about 507.9014407239.

Adding to 131020223 its reverse (322020131), we get a palindrome (453040354).

The spelling of 131020223 in words is "one hundred thirty-one million, twenty thousand, two hundred twenty-three".